Cannot add the specified assembly to the global assembly cache: SharePointBoost.xxxx.dll

​An error message shows in the solution page when deploying another solutions, in this case it’s Column/View Permission Lite: Cannot add the specified assembly to the global assembly cache: SharePointBoost.ColumnViewPermisson.dll Solution: This is due to the previous installed product — Column/View Permission was not fully removed from the environment, when installing the Column/View Permission Lite, […]

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Cannot add the specified assemble to the global assembly cache: Newtonsoft.Json.dll

​When deploying solution, an error occurred:“Cannot add the specified assemble to the global assembly cache: Newtonsoft.Json.dll ” Solution: This error indicates that “Newtonsoft.Json.dll” is locked on SharePoint servers. Try the following methods to fix this error: • Restart IIS on all SharePoint servers• Or, restart timer job services on all SharePoint servers• If the above methods […]

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Validation of viewstate MAC failed

When configuring Permission Workflow, an exception occurs: System.Web.HttpException: Validation of viewstate MAC failed. Solution: 1. For the farm containing mone than one web front ends, please make sure that all of the <machinekey> in web.config file(for specified web application) in each front end are the same. To find the <machinekey>, go to C:\inetpub\wwwroot\wss\VirtualDirectories\XXX (XXX is the port of […]

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Error message while upgrading "The solution cannot be deployed"

​An error occurs when installing the latest Column/View Permission 4.x. The solution cannot be deployed. The feature ’1d27901a-6a24-42c2-a743-bc0cd187002c’ uses the directory "SharePointBoost.ColumnViewPermission" in the solution. See the sample screenshot below:   Solution: ​This is possibly caused by the older version of Column/View Permission was not removed successfully previously. Simply install the version 3.x and remove again, then, […]

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The specified module could not be found. (Exception from HRESULT:0x8007007E)

​During Installing/upgrading/deploying product, there is an error message shows up during the installation procedure as well in the solution status page:"The specified module could not be found. (Exception from HRESULT:0x8007007E)" An related log information could be found in SharePoint log file: Solution: ​A possible reason for this is that the WMI (http://msdn.microsoft.com/en-us/library/windows/desktop/aa394582(v=vs.85).aspx) might be corrupted, […]

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